CVE-2026-44469: high-severity vulnerability in CODESYS Development System
Incorrect Default Permissions in CODESYS Development System
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.1%
The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
CODESYS · CODESYS Development SystemRelated CVEs — CODESYS Development System
In the same product, most dangerous first.
CVE-2022-31805HIGHInsecure transmission of credentialsEPSS 1.0%CVE-2023-3663HIGHCODESYS: Missing integrity check in CODESYS Development SystemEPSS 1.0%CVE-2023-3662HIGHCODESYS: Vulnerability in CODESYS Development System allows for execution of binariesEPSS 0.2%CVE-2023-3670HIGHCodesys: Vulnerability in CODESYS Development System and CODESYS ScriptingEPSS 0.2%CVE-2025-41700HIGHCODESYS Development System - Deserialization of Untrusted DataEPSS 0.2%CVE-2023-3669LOWCODESYS: Missing Brute-Force protection in CODESYS Development SystemEPSS 0.1%